All categories

3 years ago

Expand and simplify (6e - 6)(4e + 8).

Mathematics

1 answer:

vesna_86 [32]3 years ago

3 0

Answer:

$24 {e}^{2} + 24e - 48$

3rd answer is correct

Step-by-step explanation:

$(6e - 6)(4e + 8) \\ 6e(4e + 8) - 6(4e + 8) \\ 24 {e}^{2} + 48e - 24e - 48 \\ 24 {e}^{2} + 24e - 48$

Hope this helps you.

Let me know if you have any other questions :-):-)

You might be interested in

The hypothesis H0: \mu=350H 0 : μ = 350 versus H_a:\mu<350H a : μ < 350 are examined using a sample of size n = 20. The on

Zolol [24]

Answer:

The statistic for this case is given $t =-1.68$

The degrees of freedom are given by:

$df =n-1= 20-1=19$

Since is a one-side lower test the p value would given by:

$p_v =P(t_{19}$

Step-by-step explanation:

Data given and notation

$\bar X$ represent the sample mean

$s$ represent the sample standard deviation

$n=20$ sample size

$\mu_o =350$ represent the value that we want to test

$\alpha$ represent the significance level for the hypothesis test.

z would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the mean is lower than 350, the system of hypothesis are :

Null hypothesis: $\mu \geq 350$

Alternative hypothesis: $\mu < 350$

Since we don't know the population deviation, is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

t-test: "Is used to compare group means. Is one of the most common tests and is used to determine if the mean is (higher, less or not equal) to an specified value".

Calculate the statistic

The statistic for this case is given $t =-1.68$

P-value

The degrees of freedom are given by:

$df =n-1= 20-1=19$

Since is a one-side lower test the p value would given by:

$p_v =P(t_{19}$

5 0

3 years ago

Helppppppop me I’m need help on this nowwwwee difnoxdnslsbsk

Aleks04 [339]

Answer:

a=3, b=3, c=5

Step-by-step explanation:

4 $\frac{1}{2}$ ÷1 $\frac{1}{4}$ =a $\frac{b}{c}$

= $\frac{9}{2}$ ÷ $\frac{5}{4}$

= $\frac{9}{2}$ × $\frac{4}{5}$

= $\frac{36}{10}$

=3 $\frac{6}{10}$

=3 $\frac{3}{5}$

3 0

3 years ago

С<br> (2x + 19)<br> (3х + 8)<br> А

soldier1979 [14.2K]

Answer:

x=9

Step-by-step explanation:

step one pull out the factors

3x - 27 = 3 • (x - 9)

and step two: Equations which are never true

2.1 Solve : 3 = 0

This equation has no solution.

A a non-zero constant never equals zero.

so x-9=0 and add both sides to 9 and to equal 9

5 0

3 years ago

Logan is making bookmarks that contain flower petals. He has 95 petals. He uses 3 flower petals for each bookmark. What is the G

Tcecarenko [31]

Answer: The GREATEST number of bookmarks that Logan can make = 31.

Step-by-step explanation:

GIven: Total petals = 95

Number of petals required for each bookmark = 3

Number the number of bookmarks can be prepared from 95 petals = 95 ÷ (Petals required of each bookmark)

= 95÷3

$=31\dfrac{2}{3}\ \ \ \approx31\text{ [Round to the nearest whole number.]}$

i.e. The GREATEST number of bookmarks that Logan can make = 31.

5 0

3 years ago

3. Which rule represents a linear function? Check all

Nady [450]

The answer is C

The answer is C because the function form for a linear function is f(x) = ax+b and the answer C has x which is the slope and -3 which would represent the y-intercept also known as b

7 0

3 years ago